Safety razor



May 2,1933. o, W'ASSON 1,906,346

SAFETY RAZOR Filed. Oct. 24, 1950 Patented May 2, 1933 UNITED STATES PATENT OFFICE ORVILLE WASSON, OF IBROOKLINE, PENNSYLVANIA, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO GILLETTE SAFETY RAZOR COMPANY, OF BOSTON, MASSACHUSETTS, A

CORPORATION OF DELAWARE SAFETY RAZOR Application filed October 24, 1930. Serial No. 490,842.

The present invention relates to safety razors which include a cap member and a guard member an-d a handle having screw thread connection with the cap member for shaping a flexible blade from flat to curved shape between .said members.

The principal object of the present'mvention is to provide for the ready and convenllent insertion and withdrawal of blades endwise while the cap and guard vmembers and handle are connected together. Another object of the invention is to provide means for spacing the cap and guard members automatically, while held against relative turning movement and while connected with the handle, sufiiciently for the insertion and removal of the flat blade having a notch eX- tending through one of its ends.

Other objects of the invention will appear from the following description at the end of which the invention will be claimed, although, generally stated, the invention may be said to comprise means for spacing the guard member from the cap member when 5 the handle is partially unscrewed from the stud on the cap member and provisions for preventing relative movement of rotation between said members so that a flat blade, notched through one end, can be inserted between said members and held against rotary movement by said provisions.

The invention also comprises the improvements to be presently described and inally claimed.

In the following description reference will be made to the accompanying drawing forming part hereof and in which Figure 1 is. a side elevation of a part of a razor embodying features of the invention.

Fig. 2 is a view of the razor blade.

Figs. 3, 4 and 5 are views showing the parts detached and principally in section.

Fig. 6 is a top or plan view of a guard member detached.

Fig. 7 is a similar view of a cap member detached.

Fig. 8 is a transverse sectional view of Fig. 7. y

Fig. 9 is a sectional view illustrating a modication.

Fig. 10 is a view illustrating a modied form of blade.

Fig. 11 is a top view of the cap member arranged for use with the blade 10.

Fig. 12 is a top view of a guard member arranged for use With the other elements shown in Figs. 10 and 11.

Figure 13 is a vertical cross section of the parts shown in Figures 10, 11 an-d 12, and

Figure 14 is a vertical cross section online 14-14 of Figure 13.

Referring to the drawing, 1 is a normally iiat blade slotted through one end thereof a: at 2 and sufficiently flexible to be bent into curved form between the cap member 3 and the guard member 4. The cap member 3 is provided with a stud 5 adapted to pass into a sleeve 6 provided on the guard member 4 and to have screw thread engagement with the handle 7. There is a rib 8 on the cap member arranged to take into a groove 9 in the guard member. The stud in proximity with the cap member is of fiat form, as at 10'. When the cap member and the guard member are moved by turning the handle 7 into parallel spaced relation, the rib 8 and groove 9 are of height and depth suffi` cient to remain in engagement for preventing relative turning movement of the cap element and guard element, and by holding the guard element in the hand, as by taking hold of the part 6 thereof and holding the razor upright, the cap 3 will remain spaced from the guard 4 and the blade 1 can be inserted in flat condition so that the rib 8 and flat portion of the Astud 5 enter the notch 2 in the blade and prevent the blade from turning.

If desired, a spring 11 may be provided at the top of the rib S on the cap member 3, so that it will serve to keep the cap and guard element separated whilst the notched blade is inserted atwise regardless of the position in which the razor is held. Such a construction is shown in Fig. 7 and 8 and with it the handle 7 a, Fig. 9, may be screwed directly onto the stud 5 in which case the sleeve 6 is not essential. The projections 12 at the corners of the cap member take into the spaces 13 provided at the corners of the blade, Fig. 2, so that the blade is slid into f the holder flatwise, guided by the rib as described, and falls onto the cap member with the projections` 12 in the spaces 13.

he construction and mode of operation 5 of the modification shown inl Fig. 9 are as above described except that use is made of a hook member 14 engaging a head 15 on the handle 7, and serving to hold the cap and guard members in spaced relation for the 1 endwise insertion of the fiat blade into the osition indicated by the dotted line 16 in i 9. he construction and mode of operation of the modification illustrated in Figs. 10 to 12 are as above described except that the pro-v jections 17 on the cap member are disposed two at one end and one on the rib at the other end, and the spaces 18 in the blade Fig. 10, are correspondingly spaced. Spaces 19 are 20 also provided in the guard member in correspondence with the projections 17.

It will be obvious that the projections 17 may be arranged two at each end and none on the rib or in any other convenient location,

land the spaces 18 in the blade located to correspond therewith.

It will be obvious to thos'e skilled in the art to which the invention relates that modiications may be made in details of construc- 0 tion and arrangement and matters of mere form without departing from the spirit of the invention which is notv limited to such matters or otherwise. than the prior art and the appended claims may require. u' I claim:

1. A safety razor includin a cap member having a stud thereon anda leaf spring projecting therefrom, a guard member having a groove therein to receive said spring, a

4 blade having an open ended notch therein guided on said stud and said spring, and a handle cooperating with said stud to clamp said guard member and said blade against said cap member so that said spring prevents relative rotary movement between said guard member and said cap member and so that said spring maintains tension between said guard member and said cap member tending to separate them.

2. A safety razor including a cap member having a stud thereon, a guard member cooperating therewith, a blade having an open ended slot therein and having notches therein in its ends adjacent and opposite to said slot, guide means on said cap and uard members cooperating with said notc es in said blade to position said blade relative to said cap and guard members, and a handle cooperating with said stud to clamp said guard member and said blade against said cap mem ORVILLE WASSON. 

